Long GC pause with 1.5
We recently tried to upgrade one of our servers from 1.4.2_05 to 1.5 SP1. Everyhing worked fine for about 4 hours but then the application stopped for 90+ seconds, most likely doing garbage collection - the GC log entries show an old collection phase 4-0 pause time of 104654.538000 ms.
The memory usage pattern did not change (no extensive memory usage) and the load on the system was low.
Any idea why the application paused for an extensive period of time? Please find command line parameters, version info and relevant GC log entries below.
Thanks,
Malte
Starting JVM: /usr/j2se/bin/java -server -Xms512m -Xmx1518m -Xgcprio:pausetime -Xgcreport -Xgcpause -Xnoclassgc -Xverbosetimestamp
-Xverbose:memory -Duser.region=US -Djava.rmi.server.hostname=127.0.0.1 -Xverboselog:/var/ec/gc.log -Xss1m -Dresin.home=/opt/ec/resi
n-3.0.8 -Djava.util.logging.manager=com.caucho.log.LogManagerImpl -Djavax.management.builder.initial=com.caucho.jmx.MBeanServerBuild
erImpl com.caucho.server.resin.Resin -conf /opt/broker/conf/resin.conf-DONTTOUCH -stdout /usr/opt/var/ec/resin_stdout.log -stderr /
usr/opt/var/ec/resin_stderr.log
Starting JVM: /usr/j2se/bin/java -server -Xms512m -Xmx1518m -Xgcprio:pausetime -Xgcreport -Xgcpause -Xnoclassgc -Xverbosetimestamp
-Xverbose:memory -Duser.region=US -Djava.rmi.server.hostname=127.0.0.1 -Xverboselog:/var/ec/gc.log -Xss1m -Dresin.home=/opt/ec/resi
n-3.0.8 -Djava.util.logging.manager=com.caucho.log.LogManagerImpl -Djavax.management.builder.initial=com.caucho.jmx.MBeanServerBuild
erImpl com.caucho.server.resin.Resin -conf /opt/broker/conf/resin.conf-DONTTOUCH -stdout /usr/opt/var/ec/resin_stdout.log -stderr /
usr/opt/var/ec/resin_stderr.log
[Wed Jun 8 02:22:32 2005][10594][memory ] 16394.810-16396.048: GC 855928K->637947K (982468K), 38.596 ms
[Wed Jun 8 02:23:32 2005][10594][memory ] old collection phase 0-2 pause time: 4.982000 ms
[Wed Jun 8 02:23:33 2005][10594][memory ] total mark time: 1206.293 ms
[Wed Jun 8 02:23:34 2005][10594][memory ] old collection phase 4-5 pause time: 282.940000 ms
[Wed Jun 8 02:23:34 2005][10594][memory ] (pause includes wb processing: 11.989 ms, compaction: 187.881 ms, update ref: 82.460 ms)
[Wed Jun 8 02:23:34 2005][10594][memory ] old collection phase 5 pause time: 1.489000 ms
[Wed Jun 8 02:23:34 2005][10594][memory ] total sweep time: 362.131 ms
[Wed Jun 8 02:23:34 2005][10594][memory ] old collection phase 5-0 pause time: 3.600000 ms
[Wed Jun 8 02:23:34 2005][10594][memory ] 16456.124-16457.694: GC 875844K->602150K (982468K), 293.011 ms
[Wed Jun 8 02:23:36 2005][10594][memory ] old collection phase 0-2 pause time: 5.443000 ms
[Wed Jun 8 02:23:37 2005][10594][memory ] total mark time: 1193.165 ms
[Wed Jun 8 02:23:37 2005][10594][memory ] Changing GC strategy to single generation, concurrent mark and parallel sweep
[Wed Jun 8 02:23:37 2005][10594][memory ] total sweep time: 188.485 ms
[Wed Jun 8 02:23:37 2005][10594][memory ] thread waited for memory 1221.038 ms
[Wed Jun 8 02:23:37 2005][10594][memory ] old collection phase 4-0 pause time: 201.460000 ms
[Wed Jun 8 02:23:37 2005][10594][memory ] (pause includes wb processing: 11.796 ms, compaction: 89.731 ms, update ref: 174.185 ms)
[Wed Jun 8 02:23:37 2005][10594][memory ] 16459.696-16461.079: GC 897617K->644996K (982468K), 206.903 ms
[Wed Jun 8 02:23:43 2005][10594][memory ] old collection phase 0-2 pause time: 5.478000 ms
[Wed Jun 8 02:23:44 2005][10594][memory ] total mark time: 1250.001 ms
[Wed Jun 8 02:25:29 2005][10594][memory ] total sweep time: 104636.154 ms
[Wed Jun 8 02:25:29 2005][10594][memory ] thread waited for memory 105716.032 ms
[Wed Jun 8 02:25:29 2005][10594][memory ] old collection phase 4-0 pause time: 104654.538000 ms
[Wed Jun 8 02:25:29 2005][10594][memory ] (pause includes wb processing: 17.199 ms, compaction: 104566.365 ms, update ref: 50.661 m
s)
[Wed Jun 8 02:25:29 2005][10594][memory ] 16467.014-16572.902: GC 873943K->692479K (982468K), 104660.016 ms
[Wed Jun 8 02:25:29 2005][10594][memory ] old collection phase 0-2 pause time: 7.802000 ms
[Wed Jun 8 02:25:29 2005][10594][memory ]
[Wed Jun 8 02:25:29 2005][10594][memory ] Memory usage report
[Wed Jun 8 02:25:29 2005][10594][memory ]
[Wed Jun 8 02:25:29 2005][10594][memory ] young collections
[Wed Jun 8 02:25:29 2005][10594][memory ] number of collections = 12
[Wed Jun 8 02:25:29 2005][10594][memory ] total promoted = 5557728 (size 311089312)
[Wed Jun 8 02:25:29 2005][10594][memory ] max promoted = 653552 (size 36719336)
[Wed Jun 8 02:25:29 2005][10594][memory ] total GC time = 3.995 s
[Wed Jun 8 02:25:29 2005][10594][memory ] mean GC time = 332.910 ms
[Wed Jun 8 02:25:29 2005][10594][memory ] maximum GC Pauses = 429.677 , 452.820, 471.384 ms
[Wed Jun 8 02:25:29 2005][10594][memory ]
[Wed Jun 8 02:25:29 2005][10594][memory ] old collections
[Wed Jun 8 02:25:29 2005][10594][memory ] number of collections = 304
[Wed Jun 8 02:25:29 2005][10594][memory ] total promoted = 357976 (size 18460880)
[Wed Jun 8 02:25:29 2005][10594][memory ] max promoted = 122556 (size 6577440)
[Wed Jun 8 02:25:29 2005][10594][memory ] total GC time = 471.349 s (pause 156.340 s)
[Wed Jun 8 02:25:29 2005][10594][memory ] mean GC time = 1550.490 ms (pause 514.276 ms)
[Wed Jun 8 02:25:29 2005][10594][memory ] maximum GC Pauses = 540.426 , 557.177, 104654.538 ms
[Wed Jun 8 02:25:29 2005][10594][memory ]
[Wed Jun 8 02:25:29 2005][10594][memory ] number of concurrent mark phases = 304
[Wed Jun 8 02:25:29 2005][10594][memory ] number of concurrent sweep phases = 290
[Wed Jun 8 02:25:29 2005][10594][memory ] number of parallel sweep phases = 13
We seem to be getting a similar thing happening using 1.4.2_05 and -X:UseParNewGC on solaris. It runs for about 40 mins in our production system then the ParNew gcs blow out to anywhere between 20 and 300 seconds or more!
I'm stumped since there's no indication of any problems it just seems as though the vm has decided to change approaches or is contending for resources in some other area (e.g. threads).
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Hello,
I'm using jdk1.6.
The problem is, that sometimes I'm facing a long gc pause, specially during "concurrent mode failure".
Is there any option for jvm to set a max AppStopTime? And what could be the impact setting such a option ?
Here are the jvm settings I'm currently using:
-Xms4G -Xmx4G -XX:MaxNewSize=128M -XX:NewSize=128M -XX:MaxPermSize=256M -XX:PermSize=256M"
-server -showversion -Xbatch -XX:+UseLargePages -XX:LargePageSizeInBytes=32M
-XX:+UseParNewGC -XX:ParallelGCThreads=4 -XX:ParallelGCToSpaceAllocBufferSize=192k -XX:SurvivorRatio=6 -XX:TargetSurvivo
rRatio=75 -XX:+UseConcMarkSweepGC -XX:CMSMarkStackSize=32M -XX:CMSMarkStackSizeMax=32M -XX:+CMSParallelRemarkEnabled -XX:-CMSClassUnloadingEnabled -XX:CMSInitiatingOccupancyFraction=80 -XX:+UseCMSInitiatingOccupancyOnly -XX:+DisableExplicitGC'
Afaik there is no other chance to improve gc settings. Do you see any other possibilities ?
Thanks,
ChristianDepending on how long lived the majority of the objects in your heap are you can better adjust the sizes of the new and old generation spaces. If short lived, make your new gen space larger. You could make it as large as half your total heap using "-XX:NewRatio=1". (NewRatio would replace using MaxNewSize)
How do you know if objects are short lived or long lived? If you watch the action in your heap with VisualGC/Visual VM, and in the display you see everything get cleaned up in the eden & survivor spaces with each GC, then you probably have mostly short lived objects.
You may also see that your survivor spaces are too small. If too small, objects get promoted to the old generation space too quickly, filling up your old gen space unnecessarily, and creating long GC pauses.
The best situation is where eden and the survivior spaces are sized such that as many as possible objects get cleaned up on an ongoing basis without them moving to the old generation space as they age. -
Strange Long ParNewGC Pauses During Application Startup
Recently we started seeing long ParNewGC pauses when starting up Kafka that were causing session timeouts:
[2015-04-24 13:26:23,244] INFO 0 successfully elected as leader (kafka.server.ZookeeperLeaderElector)
2.111: [GC (Allocation Failure) 2.111: [ParNew: 136320K->10236K(153344K), 0.0235777 secs] 648320K->522236K(2080128K), 0.0237092 secs] [Times: user=0.03 sys=0.01, real=0.02 secs]
2.599: [GC (Allocation Failure) 2.599: [ParNew: 146556K->3201K(153344K), 9.1514626 secs] 658556K->519191K(2080128K), 9.1515757 secs] [Times: user=18.25 sys=0.01, real=9.15 secs]
[2015-04-24 13:26:33,443] INFO New leader is 0 (kafka.server.ZookeeperLeaderElector$LeaderChangeListener)
After much investigation I found that the trigger was the allocation of a 500M static object early in the startup code. It of course makes no sense that a single large static object in Old memory would impact ParNew collections, but, it does seem to. I have created a bug report, but, it is still under investigation.
I have reproduced the problem with a simple application on several Linux platforms including an EC2 instance and the following JREs:
OpenJDK: 6, 7, and 8
Oracle: 7 and 8
Oracle 6 does not seem to have an issue. All the ParNewGC times are small.
Here is the simple program that demonstrates the issue:
import java.util.ArrayList;
public class LongParNewPause {
static byte[] bigStaticObject;
public static void main(String[] args) throws Exception {
int bigObjSize = args.length > 0 ? Integer.parseInt(args[0]) : 524288000;
int littleObjSize = args.length > 1 ? Integer.parseInt(args[1]) : 100;
int saveFraction = args.length > 2 ? Integer.parseInt(args[2]) : 10;
bigStaticObject = new byte[bigObjSize];
ArrayList<byte[]> holder = new ArrayList<byte[]>();
int i = 0;
while (true) {
byte[] local = new byte[littleObjSize];
if (i++ % saveFraction == 0) {
holder.add(local);
I run it with the following options:
-verbose:gc -XX:+PrintGCTimeStamps -XX:+PrintGCDetails -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -Xmx2G -Xms2G
Note that I have not seen the issue with 1G heaps. 4G heaps exhibit the issue (as do heaps as small as 1.2G)
Here is the output:
0.321: [GC (Allocation Failure) 0.321: [ParNew: 272640K->27329K(306688K), 0.0140537 secs] 784640K->539329K(2063104K), 0.0141584 secs] [Times: user=0.05 sys=0.02, real=0.02 secs]
0.368: [GC (Allocation Failure) 0.368: [ParNew: 299969K->34048K(306688K), 0.7655383 secs] 811969K->572321K(2063104K), 0.7656172 secs] [Times: user=2.89 sys=0.02, real=0.77 secs]
1.165: [GC (Allocation Failure) 1.165: [ParNew: 306688K->34048K(306688K), 13.8395969 secs] 844961K->599389K(2063104K), 13.8396650 secs] [Times: user=54.38 sys=0.05, real=13.84 secs]
15.036: [GC (Allocation Failure) 15.036: [ParNew: 306688K->34048K(306688K), 0.0287254 secs] 872029K->628028K(2063104K), 0.0287876 secs] [Times: user=0.08 sys=0.01, real=0.03 secs]
15.096: [GC (Allocation Failure) 15.096: [ParNew: 306688K->34048K(306688K), 0.0340727 secs] 900668K->657717K(2063104K), 0.0341386 secs] [Times: user=0.09 sys=0.00, real=0.03 secs]
Even stranger is the fact that the problem seems to be limited to objects in the range of about 480M to 512M. Specifically:
[503316465,536870384]
Values outside this range appear to be OK. Anyone have any thoughts? Can you reproduce the issue on your machine?I have started a discussion on this issue on the hotspot-gc-dev list:
Strange Long ParNew GC Pauses (Sample Code Included)
One of the engineers on that list was able to reproduce the issue and there is some discussion there about what might be going on. I am a GC novice, but, am of the opinion that there is a bug to be found in the ParNew GC code introduced in Java 7.
Here is a more frightening example. The ParNew GCs keeping getting longer and longer - it never stabilized like the previous example I sent did. I killed the process once the ParNew GC times reached almost 1 minute each.
Bad Case - 500M Static Object:
java -verbose:gc -XX:+PrintGCTimeStamps -XX:+PrintGCDetails -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -Xmx6G -Xms6G LongParNewPause $((500*1024*1024)) 100 100
0.309: [GC0.309: [ParNew: 272640K->3028K(306688K), 0.0287780 secs] 784640K->515028K(6257408K), 0.0288700 secs] [Times: user=0.08 sys=0.01, real=0.03 secs]
0.372: [GC0.372: [ParNew: 275668K->7062K(306688K), 0.0228070 secs] 787668K->519062K(6257408K), 0.0228580 secs] [Times: user=0.07 sys=0.00, real=0.03 secs]
0.430: [GC0.430: [ParNew: 279702K->11314K(306688K), 0.0327930 secs] 791702K->523314K(6257408K), 0.0328510 secs] [Times: user=0.08 sys=0.01, real=0.03 secs]
0.497: [GC0.497: [ParNew: 283954K->15383K(306688K), 0.0336020 secs] 795954K->527383K(6257408K), 0.0336550 secs] [Times: user=0.08 sys=0.00, real=0.03 secs]
0.565: [GC0.565: [ParNew: 288023K->21006K(306688K), 0.0282110 secs] 800023K->533006K(6257408K), 0.0282740 secs] [Times: user=0.08 sys=0.00, real=0.03 secs]
0.627: [GC0.627: [ParNew: 293646K->26805K(306688K), 0.0265270 secs] 805646K->538805K(6257408K), 0.0266220 secs] [Times: user=0.07 sys=0.01, real=0.03 secs]
0.688: [GC0.688: [ParNew: 299445K->20215K(306688K), 1.3657150 secs] 811445K->535105K(6257408K), 1.3657830 secs] [Times: user=3.97 sys=0.01, real=1.36 secs]
2.087: [GC2.087: [ParNew: 292855K->17914K(306688K), 6.6188870 secs] 807745K->535501K(6257408K), 6.6189490 secs] [Times: user=19.71 sys=0.03, real=6.61 secs]
8.741: [GC8.741: [ParNew: 290554K->17433K(306688K), 14.2495190 secs] 808141K->537744K(6257408K), 14.2495830 secs] [Times: user=42.34 sys=0.10, real=14.25 secs]
23.025: [GC23.025: [ParNew: 290073K->17315K(306688K), 21.1579920 secs] 810384K->540348K(6257408K), 21.1580510 secs] [Times: user=70.10 sys=0.08, real=21.16 secs]
44.216: [GC44.216: [ParNew: 289955K->17758K(306688K), 27.6932380 secs] 812988K->543511K(6257408K), 27.6933060 secs] [Times: user=103.91 sys=0.16, real=27.69 secs]
71.941: [GC71.941: [ParNew: 290398K->17745K(306688K), 35.1077720 secs] 816151K->546225K(6257408K), 35.1078600 secs] [Times: user=130.86 sys=0.10, real=35.11 secs]
107.081: [GC107.081: [ParNew: 290385K->21826K(306688K), 41.4425020 secs] 818865K->553022K(6257408K), 41.4425720 secs] [Times: user=158.25 sys=0.31, real=41.44 secs]
148.555: [GC148.555: [ParNew: 294466K->21834K(306688K), 45.9826660 secs] 825662K->555757K(6257408K), 45.9827260 secs] [Times: user=180.91 sys=0.14, real=45.98 secs]
194.570: [GC194.570: [ParNew: 294474K->21836K(306688K), 51.5779770 secs] 828397K->558485K(6257408K), 51.5780450 secs] [Times: user=204.05 sys=0.20, real=51.58 secs]
246.180: [GC246.180: [ParNew^C: 294476K->18454K(306688K), 58.9307800 secs] 831125K->557829K(6257408K), 58.9308660 secs] [Times: user=232.31 sys=0.23, real=58.93 secs]
Heap
par new generation total 306688K, used 40308K [0x000000067ae00000, 0x000000068fac0000, 0x000000068fac0000)
eden space 272640K, 8% used [0x000000067ae00000, 0x000000067c357980, 0x000000068b840000)
from space 34048K, 54% used [0x000000068b840000, 0x000000068ca458f8, 0x000000068d980000)
to space 34048K, 0% used [0x000000068d980000, 0x000000068d980000, 0x000000068fac0000)
concurrent mark-sweep generation total 5950720K, used 539375K [0x000000068fac0000, 0x00000007fae00000, 0x00000007fae00000)
concurrent-mark-sweep perm gen total 21248K, used 2435K [0x00000007fae00000, 0x00000007fc2c0000, 0x0000000800000000)
Good Case - 479M Static Object:
java -verbose:gc -XX:+PrintGCTimeStamps -XX:+PrintGCDetails -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -Xmx6G -Xms6G LongParNewPause $((479*1024*1024)) 100 100
0.298: [GC0.298: [ParNew: 272640K->3036K(306688K), 0.0152390 secs] 763136K->493532K(6257408K), 0.0153450 secs] [Times: user=0.06 sys=0.00, real=0.02 secs]
0.346: [GC0.346: [ParNew: 275676K->7769K(306688K), 0.0193840 secs] 766172K->498265K(6257408K), 0.0194570 secs] [Times: user=0.07 sys=0.00, real=0.02 secs]
0.398: [GC0.398: [ParNew: 280409K->11314K(306688K), 0.0203460 secs] 770905K->501810K(6257408K), 0.0204080 secs] [Times: user=0.06 sys=0.00, real=0.02 secs]
0.450: [GC0.450: [ParNew: 283954K->17306K(306688K), 0.0222390 secs] 774450K->507802K(6257408K), 0.0223070 secs] [Times: user=0.06 sys=0.00, real=0.02 secs]
0.504: [GC0.504: [ParNew: 289946K->18380K(306688K), 0.0169000 secs] 780442K->508876K(6257408K), 0.0169630 secs] [Times: user=0.07 sys=0.01, real=0.02 secs]
0.552: [GC0.552: [ParNew: 291020K->26805K(306688K), 0.0203990 secs] 781516K->517301K(6257408K), 0.0204620 secs] [Times: user=0.06 sys=0.00, real=0.02 secs]
0.604: [GC0.604: [ParNew: 299445K->21153K(306688K), 0.0230980 secs] 789941K->514539K(6257408K), 0.0231610 secs] [Times: user=0.06 sys=0.00, real=0.02 secs]
0.659: [GC0.659: [ParNew: 293793K->29415K(306688K), 0.0170240 secs] 787179K->525498K(6257408K), 0.0170970 secs] [Times: user=0.07 sys=0.01, real=0.02 secs]
0.708: [GC0.708: [ParNew: 302055K->23874K(306688K), 0.0202970 secs] 798138K->522681K(6257408K), 0.0203600 secs] [Times: user=0.06 sys=0.00, real=0.02 secs]
0.759: [GC0.760: [ParNew: 296514K->26842K(306688K), 0.0238600 secs] 795321K->528371K(6257408K), 0.0239390 secs] [Times: user=0.07 sys=0.00, real=0.03 secs]
0.815: [GC0.815: [ParNew: 299482K->25343K(306688K), 0.0237580 secs] 801011K->529592K(6257408K), 0.0238030 secs] [Times: user=0.06 sys=0.01, real=0.02 secs]
0.870: [GC0.870: [ParNew: 297983K->25767K(306688K), 0.0195800 secs] 802232K->532743K(6257408K), 0.0196290 secs] [Times: user=0.07 sys=0.00, real=0.02 secs]
0.921: [GC0.921: [ParNew: 298407K->21795K(306688K), 0.0196310 secs] 805383K->531488K(6257408K), 0.0196960 secs] [Times: user=0.06 sys=0.00, real=0.02 secs]
0.972: [GC0.972: [ParNew: 294435K->25910K(306688K), 0.0242780 secs] 804128K->538329K(6257408K), 0.0243440 secs] [Times: user=0.06 sys=0.00, real=0.02 secs]
1.028: [GC1.028: [ParNew: 298550K->21834K(306688K), 0.0235000 secs] 810969K->536979K(6257408K), 0.0235600 secs] [Times: user=0.06 sys=0.00, real=0.03 secs]
1.083: [GC1.083: [ParNew: 294474K->26625K(306688K), 0.0188330 secs] 809619K->544497K(6257408K), 0.0188950 secs] [Times: user=0.06 sys=0.00, real=0.02 secs]
1.133: [GC1.133: [ParNew: 299265K->26602K(306688K), 0.0210780 secs] 817137K->547186K(6257408K), 0.0211380 secs] [Times: user=0.06 sys=0.00, real=0.02 secs]
1.185: [GC1.185: [ParNew: 299242K->26612K(306688K), 0.0236720 secs] 819826K->549922K(6257408K), 0.0237230 secs] [Times: user=0.07 sys=0.00, real=0.03 secs]
1.240: [GC1.241: [ParNew: 299252K->26615K(306688K), 0.0188560 secs] 822562K->552651K(6257408K), 0.0189150 secs] [Times: user=0.07 sys=0.00, real=0.02 secs]
1.291: [GC1.291: [ParNew: 299255K->26615K(306688K), 0.0195090 secs] 825291K->555378K(6257408K), 0.0195870 secs] [Times: user=0.07 sys=0.00, real=0.02 secs]
1.342: [GC1.342: [ParNew: 299255K->22531K(306688K), 0.0229010 secs] 828018K->554021K(6257408K), 0.0229610 secs] [Times: user=0.07 sys=0.00, real=0.02 secs]
1.396: [GC1.396: [ParNew: 295171K->24505K(306688K), 0.0265920 secs] 826661K->560810K(6257408K), 0.0266360 secs] [Times: user=0.07 sys=0.00, real=0.03 secs]
1.453: [GC1.453: [ParNew: 297145K->24529K(306688K), 0.0296490 secs] 833450K->563560K(6257408K), 0.0297070 secs] [Times: user=0.09 sys=0.00, real=0.03 secs]
1.514: [GC1.514: [ParNew: 297169K->27700K(306688K), 0.0259820 secs] 836200K->569458K(6257408K), 0.0260310 secs] [Times: user=0.07 sys=0.00, real=0.02 secs]
1.571: [GC1.572: [ParNew: 300340K->27666K(306688K), 0.0199210 secs] 842098K->572150K(6257408K), 0.0199650 secs] [Times: user=0.07 sys=0.01, real=0.02 secs]
1.623: [GC1.623: [ParNew: 300306K->27658K(306688K), 0.0237020 secs] 844790K->574868K(6257408K), 0.0237630 secs] [Times: user=0.08 sys=0.00, real=0.02 secs]
1.678: [GC1.678: [ParNew: 300298K->31737K(306688K), 0.0237820 secs] 847508K->581674K(6257408K), 0.0238530 secs] [Times: user=0.08 sys=0.00, real=0.03 secs]
1.733: [GC1.733: [ParNew: 304377K->21022K(306688K), 0.0265400 secs] 854314K->573685K(6257408K), 0.0265980 secs] [Times: user=0.08 sys=0.00, real=0.02 secs]
1.791: [GC1.791: [ParNew: 293662K->25359K(306688K), 0.0249520 secs] 846325K->580748K(6257408K), 0.0250050 secs] [Times: user=0.07 sys=0.00, real=0.02 secs]
1.847: [GC1.847: [ParNew: 297999K->19930K(306688K), 0.0195120 secs] 853388K->581179K(6257408K), 0.0195650 secs] [Times: user=0.07 sys=0.00, real=0.02 secs]
1.898: [GC1.898: [ParNew: 292570K->20318K(306688K), 0.0233960 secs] 853819K->584294K(6257408K), 0.0234650 secs] [Times: user=0.07 sys=0.00, real=0.03 secs]
1.953: [GC1.953: [ParNew: 292958K->20415K(306688K), 0.0233530 secs] 856934K->587117K(6257408K), 0.0234130 secs] [Times: user=0.07 sys=0.00, real=0.02 secs]
2.007: [GC2.007: [ParNew: 293055K->20439K(306688K), 0.0301410 secs] 859757K->589868K(6257408K), 0.0302070 secs] [Times: user=0.09 sys=0.00, real=0.03 secs]
2.068: [GC2.068: [ParNew: 293079K->20445K(306688K), 0.0289190 secs] 862508K->592600K(6257408K), 0.0289690 secs] [Times: user=0.09 sys=0.00, real=0.03 secs]
^C2.129: [GC2.129: [ParNew: 293085K->29284K(306688K), 0.0218880 secs] 865240K->604166K(6257408K), 0.0219350 secs] [Times: user=0.09 sys=0.00, real=0.02 secs]
Heap
par new generation total 306688K, used 40135K [0x000000067ae00000, 0x000000068fac0000, 0x000000068fac0000)
eden space 272640K, 3% used [0x000000067ae00000, 0x000000067b898a78, 0x000000068b840000)
from space 34048K, 86% used [0x000000068d980000, 0x000000068f619320, 0x000000068fac0000)
to space 34048K, 0% used [0x000000068b840000, 0x000000068b840000, 0x000000068d980000)
concurrent mark-sweep generation total 5950720K, used 574881K [0x000000068fac0000, 0x00000007fae00000, 0x00000007fae00000)
concurrent-mark-sweep perm gen total 21248K, used 2435K [0x00000007fae00000, 0x00000007fc2c0000, 0x0000000800000000) -
My iMac 24 can no longer be paired with the keyboard; it doesn't recognise any keyboard at boot up, even the one it is paired with. Can anyone help, please?
Thank. SimonBrian - The batteries are fine and there has only every been one keyboard paired with it. We have tried my MacPro keyboard as well, and it will not even recognise that there is a discoverable keyboard nearby.
Thanks, Simon -
I need to get my iPod to no longer be associated with the original i store account. My husband set it up through his account but now I have my own account. I don't want to go through his every time I want to make a change. how do I make this change?
I am trying to stop using my I-pod under my husband's I-Tune account. It was set up under his account and the only way I can use it under my account is to erase all of the songs my husband loaded on for me. I had heard there is a duration that I-Pods are locked into to one account only, and I am trying to discover how I can use my account without having to erase everything on the I-Pod. I know it sounds confusing but that's the way I-tunes have set it up. thanks for asking.
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I want to change my wallpaper to an image that was available
before I upgraded to IOS 8.1.3 - a close-up image of long reedy grasses with hazy light in the background.
Greyish hues. Where can find the image & how do I get it back on my phone?I want to change my wallpaper to an image that was available
before I upgraded to IOS 8.1.3 - a close-up image of long reedy grasses with hazy light in the background.
Greyish hues. Where can find the image & how do I get it back on my phone? -
My iPod no longer appears as folder/file in Itunes when connected. Library, genius, playlists, etc. are present, but there is no longer cross reference with the iPod itself. Help!?
I just tried it again and this time a different message showed up "The iPod 'name' cannot be synced. The required folder cannot be found." I have no clue what folder it could be talking about.
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I downloaded the new IOS7 on my iphone. I can no longer sync up with itunes. How do I update itunes to sync up with my updated iphone?
If you go to iTunes on your computer click on the App Store and scroll all the way down . In the bottom right of the screen is a map logo. Click on that and then chose the flag for the country you want
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My "Notes" app on my iPhone 4S is no longer syncing up with my "Notes" app on my PC or on my iPad. It was syncing up fine before. But no longer. How do I fix this so that whatever I type in iPhone "Notes" will appear in my other devices' "Notes"?
See Recover your iTunes library from your iPod or iOS device.
tt2 -
Nano 5th GenerationWindows xp.
My nano no longer opens automatically with file options menu when I connect it to my lap top. Trying to import priceless videos of my daughter from ipod to computer, However, when I run it I get these results: I click onto My computer/ipod/dcim/000apple and 75 IMG.DAT files come up. Now I am almost sure those files shouldnt be on there. If my memory serves me corrrectly the dcim folder is where one should be able to find video recording made with their iopd?If there is a way to import these videos without having to reset my ipod and lose precious videos please please let me know? HELLLLLLPTry: http://discussions.apple.com/thread.jspa?threadID=743515&tstart=15
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Why can I no longer open images with Photoshop CS3, running on Mac OS 10.4.11?
Why can I no longer open images with Photoshop CS3, running on Mac OS 10.4.11?
You may be able to drag and drop the icons from one toolbar onto another, you can then hide the toolbar that you no longer need. For details on how to do that see https://support.mozilla.com/kb/How+to+customize+the+toolbar
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Why can I no longer use AirPlay with my Slingbox? New updates break complatibility?
Why can I no longer use AirPlay with my Slingbox? New updates break complatibility?
You already seem to know what the issue is, it is the parallax feature that was added to iOS 7. From your rant, it appears that your attempt to work around this was not successful. According to the Apple documents I've seen, they recommend that you enlarge your image (not reduce it). Make your image have excess space on all sides, which is not displayed on the screen. This way, when you tilt your device one direction or another, it can shift the image to give the appearance of 3D.
As a photographer, I like to use the full frame of my images, but I also know that I need to leave room around the image as well. I have some photos I have taken that I can't use because I have them cropped too tightly too, but I have others that work just fine. Just remember that part of the image file is "off screen" so that if iOS has to shift the image up it has some image that can scroll onto the screen. It needs this space on all sdes, so just make youre images larger, and keep in mind that a portion on each side will be outside the normally visible screen... If you don't like this feature, you can always go into the settigns and turn it off. -
I no longer have access with the e-mail on my account. Can I change just the email on it to my current? I know it is dumb but I just got a new iPhone and can't add it.
You should be able to login here and change the email address on your account : http://appleid.apple.com
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Can no longer re-size with selection tool
For some reason, I can no longer resize objects with the selection tool. When I click on an element, the handles appear, but remain solid. When I select to scale the item, the whole item moves. Any suggestions?
Cmd(Ctrl)-Shift-B which is the toggle for Show/Hide Bounding Box or maybe Cmd(Ctrl)-H the toggle for Show/Hide Edges.
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My ipod touch is stuck in the apple loading screen
my ipod is the 3rd gen it was frozen so i had turned it off than i turned it back on to find the appe loading screen its been on for thw past three hours i tried to connect it to itunes but its lock and i cant put my passcode in to unlock it help ple
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Problem Solved.
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InDesign CS5 Mac & Suitcase Fusion 3.0 - Crashing when exporting PDFs
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